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Table 4 ROC curve for the performance of amino acids in the prediction of very severe depression among the treated cases

From: Changes in tryptophan and phenylalanine in chronic HCV patients treated with direct acting antiviral (sofosbuvir)

Score Sens % Spec % PPV % NPV % Accuracy % AUC 95% CI P
Phenylalanine ≥ 2.13 μg/ml 96.9 62.5 91.1 83.3 92.5 0.848 0.7–0.99 0.003 (S)
Tryptophan ≤ 8.53 ng/ml 81.2 75 92.8 50 80 0.812 0.62–1.0 0.007 (S)
  1. S significant